Euronews

The daughter and son-in-law of murdered billionairess Hélène Pastor are among 23 people detained by French police in connection with her shooting in May.

Police purportedly suspect two illegal migrants from the Comoros Islands of carrying out the attack. But phone taps on son-in-law Wojciech Janowski’s line are said to point to a possible link between the couple and the suspects.

His bank account is reportedly also being investigated after suspicious financial transactions were uncovered.

But the motive for the killing remains unclear.

The Monégasque heiress was one of the richest women in Europe and her daughter Sylvia Pastor was reportedly given a yearly allowance of six million euros. Her businessman husband Wojciech Janowski is also the honorary Polish consul in Monaco.

Yet investigators are said to be looking into a possible family dispute over the size of Sylvia’s allowance.

Hélène Pastor was shot in the jaw, chest and neck as her car left a hospital car park in Nice. A gunman fired through the windscreen of the car using a sawn-off shotgun.

Pastor’s chauffeur died of his injuries four days after the assault. The heiress died four days later, despite originally appearing to have recovered from more than 50 pellet wounds.